<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>t1</title>
    <meta name="viewport" content="width=device-width,initial-scale=1,shrink-to-fit=no">
    <link type="text/css" rel="stylesheet" href="../external/bootstrap-4.5.3-dist/css/bootstrap.min.css">
</head>
<body>
<div>
    <div>
        <div class="container">
            <h1>t1</h1>

            <div class="row justify-content-around">
                <div class="col-xl-3" style="background: red">
                    <!--col-xl-写几就占一行12份中的几份-->
                    111
                </div>
                <div class="col-xl-5" style="background: yellow">
                    <!--col-xl-写几就占一行12份中的几份-->
                   333
                </div>
            </div>

        </div>




    </div>
</div>

</body>
</html>
